Barney has a woman detective go undercover to investigate a dentist accuses of inappropriate touching of women patients while sedated. Harris and Wojo bring in a suspect accused of disturbing the peace at a nearby diner.

Vagrant Ray Brewer comes to the twelfth precinct, looking for help when some fellow homeless men end up missing under what he considers auspicious circumstances, resulting in Harris going undercover to find out what's happening. Meanwhile, Wojo and Dietrich start competing over who'll help fill out the arrest report of a woman looking to conceive a child with and then raise it alone.